The 43-394 1.5mm Dia. x 1.0mm FL is a spherical lens with a plano-convex shape, sourced from the reputable optical components vendor, Edmund Optics. This lens, with its 1.5mm diameter and 1.0mm focal length, is uncoated, offering a bare, unaltered glass surface.
The lens's geometry is intricately designed, with a 0.35mm thickness at the edge and a center thickness of 0.8mm. The effective focal length (EFL) is 1mm, and the radius of curvature (R1) is 0.85mm. The back focal length (BFL) is 0.57mm, and both the inner and outer radii are 0mm, indicating a flat surface on one side and a curved surface on the other.
The lens is made from the high-quality glass material, n-lasf9, manufactured by Schott. This material is specifically designed for use in the visible spectrum, with a central wavelength of 587.6nm. The lens's shape and material make it suitable for a wide range of optical applications.
Please note that the lens does not come with any coating. Coatings are often applied to lenses to enhance their performance in specific applications, such as reducing reflection, increasing transmission, or providing scratch resistance. However, this lens is in its bare form, offering a clean, unaltered optical surface.